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Start ShoppingBOYESEN RAD85F-2 Rage Cage - High-Performance Intake System for Powersports Vehicles
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Description
Elevate your powersports vehicle's performance with BOYESEN's Rage Cage intake system. This high-performance intake delivers optimized airflow and enhanced engine efficiency for maximum power output and reliable operation.
Key Features
- Forged Aluminum Construction: Durable, corrosion-resistant design withstands harsh off-road conditions
- Optimized Airflow Path: Engineered flow channels reduce turbulence for improved combustion efficiency
- Easy Installation: Plug-and-play design fits standard intake systems with minimal modifications
- Heat-Resistant Materials: Maintains performance in extreme temperatures without warping or degradation
Why Choose This Product
Whether you're tackling rugged terrain or racing on the track, the BOYESEN Rage Cage offers a cost-effective way to boost horsepower and throttle response. Its lightweight construction reduces engine strain while maintaining structural integrity. The system's universal compatibility makes it ideal for ATVs, UTVs, and off-road motorcycles. With its focus on airflow optimization, this intake system provides a noticeable power gain without compromising reliability.
SKU:
GM5557242D
MPN:
RAD85F-2
UPC:
804429511358
Category:
Intake/Carb/Fuel System
Brand:
BOYESEN
Stock:
Out of Stock
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Elevate your powersports vehicle's performance with BOYESEN's Rage Cage intake system. This high-performance intake delivers optimized airflow and enhanced engine efficiency for maximum power output and reliable operation.
Key Features
- Forged Aluminum Construction: Durable, corrosion-resistant design withstands harsh off-road conditions
- Optimized Airflow Path: Engineered flow channels reduce turbulence for improved combustion efficiency
- Easy Installation: Plug-and-play design fits standard intake systems with minimal modifications
- Heat-Resistant Materials: Maintains performance in extreme temperatures without warping or degradation
Why Choose This Product
Whether you're tackling rugged terrain or racing on the track, the BOYESEN Rage Cage offers a cost-effective way to boost horsepower and throttle response. Its lightweight construction reduces engine strain while maintaining structural integrity. The system's universal compatibility makes it ideal for ATVs, UTVs, and off-road motorcycles. With its focus on airflow optimization, this intake system provides a noticeable power gain without compromising reliability.
| SKU | GM5557242D |
|---|---|
| MPN | RAD85F-2 |
| UPC/GTIN | 804429511358 |
| Brand | BOYESEN |
| Category | Intake/Carb/Fuel System |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KX450F | 2008-2014 |
| Kawasaki | KX250F | 2006-2014 |
| Suzuki | RMZ450 | 2009-2015 |
| Suzuki | RMZ250 | 2009-2015 |
| Honda | CRF450R | 2008-2013 |
| Honda | CRF250R | 2009-2013 |
Frequently Asked Questions
Yes, the RAD85F-2 is direct fit for 2008-2014 Kawasaki KX450F models.
Usually not required, but monitor jetting if you notice lean conditions at WOT. Many users report no changes needed.
Typically 2-4 HP gain in mid-to-top range on stock engines, more with other mods.
Yes, Boyesen sells replacement carbon reed petals separately (part RC2).
No, this is a single-stage high-flow design optimized for motocross performance.
Installation Guide
Difficulty
Medium
Est. Time
45 min
Tools Required
- Socket set (8-12mm)
- Torque wrench
- Reed cage puller tool
- Carburetor synchronization tool (recommended)
Pro Tips
- Apply light oil to new reed petals before assembly
- Torque screws to 5-7 in-lbs
- Check reed-to-cage clearance (should be 0.010-0.015")
Common Mistakes to Avoid
- Not cleaning mating surfaces thoroughly
- Incorrect torque on reed cage screws (can cause vibration)
- Failing to sync carbs after install
Comparison vs Stock/OEM
Replaces restrictive OEM fiber reeds with dual carbon fiber petals and optimized cage geometry
Improvements
- 35% more airflow
- Faster reed response
- Better throttle crispness
- Reduced reed flutter at high RPM
Considerations
- Higher initial cost
- May require rejetting in extreme conditions
Durability & Warranty
Expected Lifespan
50-100 hours of racing (reeds may need replacement sooner)
Warranty
1 year manufacturer defect warranty
Maintenance
Inspect reeds every 10 hours, replace if edges show wear or stiffness loss
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